Troubleshooting guide

22
Software Upgrade Procedures
Step 2 Enter ‘. (backquote plus dot, that is, left single quote plus period).
Step 3 At the TCS HUB prompt, use the connect command to connect to the NP in Slot 1, as
follows:
TCS HUB <<A>> connect 1
The user name: prompt should appear. Log in as root. The bash prompt appears (with #
indicating a root login).
user name: root
password:
bash#
You may need to enter a second [Return] after typing the connect command in order to get
a prompt from the NP.
If someone using the machine before you has not logged out of their session, your prompt
may be different than the one shown above. Attempt to get back to a bash prompt and log
out.
Step 4 On a system with redundant NPs, verify that you are connected to the primary NP:
• At the bash prompt, enter the cli command to start the CLI.
bash# cli
• At the CLI prompt, enter the show chassis command and examine the entries for “Slot
of Primary NP” and “Slot of This NP.”
• At the CLI prompt, enter the show chassis command and examine the entries for “Slot
of Primary NP” and “Slot of This NP.”
• Use the exit or quit command to exit from the CLI.
Step 5 If the two entries identify the same NP number, you are connected to the primary NP. If you
are connected to the backup NP, disconnect from it and connect to the primary NP as
follows:
• Enter ‘. (backquote plus dot, that is, left single quote plus period) to return to the TCS
HUB.
If your system has only one NP, skip Step 4 and Step 5 and go to Step 6 now.
If the two entries identify the same NP number, then you are connected to the primary NP (the
active NP). Since you connected to slot 1 in Step 3 above, the following is true:
primary= 1
backup= 2
Make a note of this. You will use the value 1 where you see the parameter name “primary” in
later procedures.
If the two entries do not identify the same NP number, then you are connected to the backup NP.
Since you connected to slot 1 in Step 3 above, the following is true:
primary = 2
backup = 1
Make a note of this. You will use the value 2 where you see the parameter name “primary” in
Step 5, below, and in other procedures.